Contactors for Data Center PDU and UPS Systems: Selection Guide
AC-1 and AC-6a contactors for data center PDU and UPS systems: sizing, harmonic derating, coil selection, and endurance guidance for engineers. Shop at Stoklink.
CAD32FD is Schneider Electric's TeSys Deca control relay in a 3NO+2NC arrangement, built around a 110 V DC coil and a 140 A AC rated making capacity for up to 690 V circuits. Rated for AC-15/DC-13 duty between -40 and +60 °C, it duplicates and interlocks pilot signals in motor control circuits, terminating on screw clamp terminals on DIN rail or a mounting plate.
Choose this 3NO+2NC variant for a break contact for indication or safety-chain monitoring alongside the make contacts, useful for interlocking circuits. The 110 V DC coil matches circuits already wired at that voltage, avoiding a separate step-down winding. The DC coil carries no steady-state inrush surge but closes in 53–72 ms — noticeably slower than the AC-coil variant's 12–22 ms — because of the electronic surge-limiting circuit; account for that when the relay is in a fast-cycling sequence.
| Range | TeSys, TeSys Deca |
|---|---|
| Product name | TeSys CAD |
| Product or Component Type | Control relay |
| Device short name | CAD |
| Contactor application | Control circuit |
| Utilisation category | AC-15, DC-13, AC-14 |
|---|---|
| Pole contact composition | 3 NO + 2 NC |
| [Ue] rated operational voltage | <= 690 V AC 25...400 Hz |
| Control circuit type | DC standard |
| [Uc] control circuit voltage | 110 V DC |
| [Uimp] rated impulse withstand voltage | 6 kV IEC 60947 |
| [Ith] conventional free air thermal current | 10 A (at 140 °F (60 °C)) |
| Irms rated making capacity | 140 A AC IEC 60947-5-1, 250 A DC IEC 60947-5-1 |
| [Icw] rated short-time withstand current | 100 A - 1 s, 120 A - 500 ms, 140 A - 100 ms |
| Associated fuse rating | 10 A gG conforming to IEC 60947-5-1 |
| [Ui] rated insulation voltage | 600 V UL, 600 V CSA, 690 V IEC 60947-5-1 |
| Mounting Support | Rail, Plate |
| Connections - terminals | screw clamp terminals 1 0.002…0.006 in² (1…4 mm²)flexible without cable end, screw clamp terminals 2 0.002…0.006 in² (1…4 mm²)flexible without cable end, screw clamp terminals 1 0.002…0.006 in² (1…4 mm²)flexible with cable end, screw clamp terminals 2 0.002…0.004 in² (1…2.5 mm²)flexible with cable end, screw clamp terminals 1 0.002…0.006 in² (1…4 mm²)solid without cable end, screw clamp terminals 2 0.002…0.006 in² (1…4 mm²)solid without cable end |
| Tightening torque | 15.05 lbf.in (1.7 N.m) screw clamp terminals Philips No 2, 15.05 lbf.in (1.7 N.m) screw clamp terminals flat Ø 6 mm, 15.05 lbf.in (1.7 N.m) screw clamp terminals pozidriv No 2 |
| Control circuit voltage limits | 0.1...0.25 Uc (-40…158 °F (-40…70 °C)):drop-out DC, 0.7...1.25 Uc (-40…140 °F (-40…60 °C)):operational DC, 1...1.25 Uc (140…158 °F (60…70 °C)):operational DC |
| Operating time | 53...72 ms coil energisation and NO closing, 16...24 ms coil de-energisation and NO opening, 47...63 ms coil energisation and NC opening, 15...25 ms coil de-energisation and NC closing |
| Mechanical durability | 30 Mcycles |
| Maximum operating rate | 180 cyc/mn |
| Time constant | 28 ms |
| Inrush power in W | 5.4 W 68 °F (20 °C)) |
| Hold-in power consumption in W | 5.4 W 68 °F (20 °C) |
| Minimum switching voltage | 17 V |
| Minimum switching current | 5 mA |
| Non-overlap time | 1.5 ms on energisation between NC and NO contact, 1.5 ms on de-energisation between NC and NO contact |
| Insulation resistance | > 10 MOhm |
| Mechanical robustness | Shocks control relay open10 Gn for 11 ms IEC 60068-2-27, Shocks control relay closed15 Gn for 11 ms IEC 60068-2-27, Vibrations control relay open2 Gn, 5...300 Hz IEC 60068-2-6, Vibrations control relay closed4 Gn, 5...300 Hz IEC 60068-2-6 |
| Height | 3.03 in (77 mm) |
| Width | 1.8 in (45 mm) |
| Depth | 3.7 in (93 mm) |
| Net Weight | 1.28 lb(US) (0.58 kg) |
| Standards | EN/IEC 60947-5-1, GB/T 14048.5, UL 60947-5-1, CSA C22.2 No 60947-5-1, JIS C8201-5-1 |
|---|---|
| Product Certifications | CB, CCC, UL, CSA, EAC, CE, UKCA |
| IP degree of protection | IP2X front face VDE 0106 |
| Protective treatment | TH IEC 60068 |
| Ambient air temperature for operation | -40…140 °F (-40…60 °C), 140…158 °F (60…70 °C) with derating |
| Ambient Air Temperature for Storage | -76…176 °F (-60…80 °C) |
| Operating altitude | 0...9842.52 ft (0...3000 m) |
| Part number | CAD32FD |
|---|---|
| Type designation | CAD |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3389110404203 |
| Warranty (in months) | 18 |
|---|
| Country of origin | ID |
|---|---|
| Shipping weight | 0.58 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of CAD is 10 A.
The rated operational voltage of CAD is 110 V DC.
The tariff (HS) code on file for CAD is 853650.
The EAN (GTIN) of CAD is 3389110404203.
CAD ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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